Airline Connector - Identification. What the hell is this item??

[Svengali0]

I now have a an Ingersoll-Rand compressor with airlines and a lot of useful tools fairly recently obtained from an older fellow neighbour- ex mine engineer.
The entire setup has these bloody airline connectors. Thing is, they are nice. No leaking, good coupling.
I now want more of them but can't for the life of me find what they actually are...
Pics (sorry for potato quality) have a Nitto type connector included for reference purposes.
Can anyone here help with identification?

Cheers steu

connecter airline 3.jpgconnecter airline 2.jpgconnecter airline 1.jpg

[Bearman]

Possibly a hydraulic connector.

[Pedro_The_Swift]

I think its still an air coupling,,
it would be a messy hydraulic one

[l00kin4]

Lincoln L style coupling - looks about right ? Lincoln Industrial > Products > Airline Accessories > Air couplers and nipples > Lincoln-Style

5 Lincoln Quick Coupler Air Hose Connector Fittings 1/4 NPT Tools Plug L STYLE | eBay

Looks like 1/4 NPT thread too.

David

[Svengali0]

Lincoln L style coupling - looks about right ? Lincoln Industrial > Products > Airline Accessories > Air couplers and nipples > Lincoln-Style

5 Lincoln Quick Coupler Air Hose Connector Fittings 1/4 NPT Tools Plug L STYLE | eBay

Looks like 1/4 NPT thread too.

David

Thanks David...This is the item!

[Pedro_The_Swift]

from the blurb,,
it runs to 300psi, which is a lot!

just wondering if thats the reason for the long end?
I'm thinking the long end supports the hose, stops it bending and working the clamp?